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- Title
Effects of Sowing Time and Chemical, Organic, and Biological Fertilizer Sources on Yield Components and Antioxidant Properties of Dragon's Head (Lallemantia iberica (M. Bieb.) Fisch. & C. A. Mey).
- Authors
Maddahi, Shayesteh; Rahimi, Amir; Siavash Moghaddam, Sina; Pourakbar, Latifeh; Popović-Djordjević, Jelena
- Abstract
The effects of winter and spring sowing and chemical, organic, and biological fertilizer sources were studied on yield components and antioxidant properties of dragon's head (Lallemantia iberica (M. Bieb.) Fisch. & C. A. Mey) in a field experiment in the 2017–2018 growing season with three replications and six treatments. The fertilizer treatments including (i) manure (6.3 ton ha−1), (ii) NPK fertilizer (urea: 110 kg ha−1 + triple superphosphate: 60 kg ha−1 + potassium sulfate: 50 kg ha−1 + micronutrients: 23 kg ha−1), (iii) vermicompost (6.8 ton ha−1), (iv) humic acid (400 kg ha−1), and (v) thiobacillus (2%) + granular sulfur (400 kg ha−1) were recorded. The winter sowing was advantageous over the spring sowing, as better results were obtained for seed yield per plant, essential oil content and yield, mucilage content and yield, and antioxidant components of dragon's head. The measurement of biochemical traits showed that the growth and nutritional conditions of dragon's head can affect its antioxidant activity so that the winter-sown plants fertilized with thiobacillus, vermicompost, or NPK fertilizer had higher antioxidant activity. It was also found that different parts of the dragon's head plants varied in antioxidant properties so that this activity was greater in seeds than in the leaves. In total, the results showed that the winter sowing of this plant would be better for its yield in the Azerbaijan region (Iran) and it is recommended to fertilize this plant species with vermicompost and thiobacillus.
- Subjects
AZERBAIJAN; SOWING; DRAGONS; SEED yield; POTASSIUM sulfate; ESSENTIAL oils
- Publication
Journal of Plant Growth Regulation, 2022, Vol 41, Issue 3, p1276
- ISSN
0721-7595
- Publication type
Article
- DOI
10.1007/s00344-021-10371-w